\documentclass[spanish,a4paper]{article} 

\usepackage{babel}
\usepackage[latin1]{inputenc}
%\usepackage{bbm}
\usepackage{framed}
\input{macrosAlgo1}




\newcommand{\comen}[2]{%

\begin{framed}

\noindent \textsf{#1:} #2

\end{framed}

}

\begin{document}

\section*{Visor de ejercicio}


\input{ejercicios/15.tex}

\section*{Auxiliares}

\input{auxi.tex}

\end{document}
